A random access method is described that includes a network device determines a first channel access type used by a terminal device to access a first unlicensed frequency band, where the first channel access type is one of channel access types of an unlicensed frequency band, and there are two channel access types of the unlicensed frequency band: frame based equipment (FBE) and load based equipment (LBE). The network device sends a first system message to the terminal device, where the first system message carries first indication information, and the first indication information is used to indicate the first channel access type. The terminal device obtains the first system message from the network device, and accesses the first unlicensed frequency band by using the first channel access type indicated by the first indication information.
Legal claims defining the scope of protection, as filed with the USPTO.
2. The method according to claim 1, wherein the first system message is carried in a physical broadcast channel (PBCH) or remaining minimum system information (RMSI).
3. The method according to claim 2, wherein the first system message further comprises second indication information, and the second indication information is used to indicate a periodicity of a frame of the network device.
4. The method according to claim 2, wherein the first system message further comprises third indication information that is used to indicate rates of a channel occupancy time (COT) and an idle period of the frame of the network device.
5. The method according to claim 2, wherein the first system message further comprises an offset of a boundary of the frame of the network device relative to a boundary of the radio frame.
6. The method according to claim 1, wherein the first RRC signaling further carries an offset of a boundary of the frame of the terminal device relative to the boundary of the frame of the network device.
10. The method according to claim 9, wherein the first system message is carried in a physical broadcast channel (PBCH) or remaining minimum system information (RMSI).
11. The method according to claim 10, wherein the first system message further comprises second indication information, and the second indication information is used to indicate a periodicity of a frame of the network device.
12. The method according to claim 10, wherein the first system message further comprises third indication information that is used to indicate rates of a channel occupancy time (COT) and an idle period of the frame of the network device.
13. The method according to claim 11, wherein the first RRC signaling further carries an offset of the frame of the terminal device relative to the frame of the network device.
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August 20, 2021
December 10, 2024
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